In depth comparison and review of HP ProBook 440 G9 Notebook and HP 255 G6 Notebook. Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of HP ProBook 440 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
solid build quality
comfortable keyboard layout
efficient processor performance
adequate port selection
average display brightness
modest battery life
standard design
limited graphics capability
DESIGN AND DIMENSIONS | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 32.19 cm x 21.39 cm x 1.99 cm | 38 cm x 25.38 cm x 2.38 cm |
Weight | 1.42 kg | 1.86 kg |
Colour | Natural silver | Jet black |
DISPLAY | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Screen Size (Type) | 14" - IPS | 15.6" - TN |
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LCD Backlight Technology | WLED backlight | WLED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 1366 x 768 (HD) |
Pixel Density (ppi) | - | 100 |
V-Sync Rate at Max Res. | 60 Hz | - |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 250 cd/m² | 220 cd/m² |
Colour Gamut | 45% NTSC | - |
Features | Full HD ultra wide-viewing angle (UWVA) eDP anti-glare, narrow bezel bent | Slim Design, HD standard-viewing angle (SVA) eDP anti-glare |
PROCESSOR | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz | AMD A6 9220 / 2.5 GHz |
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Max Turbo Speed | 4.4 GHz | 2.9 GHz |
Number of Cores | 10-core | Dual-Core |
Cache | L3 - 12 MB | L2 - 1 MB |
64-bit Computing | - | Yes |
Features | Hyper-Threading Technology, Intel Turbo Boost Technology, Intel Smart Cache | - |
MEMORY | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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RAM | 8 GB (1 x 8 GB) | 4 GB (1 x 4 GB (non customer accessible / upgradeable)) |
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Max RAM Supported | 32 GB | 8 GB |
RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM |
Speed | 3200 MHz | 2133 MHz / PC4-19200 |
Rated Speed | 3200 MHz | 2400 MHz |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 1 |
Empty Slots | 1 | 0 |
STORAGE | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe - NVM Express (NVMe) | 256 GB SSD M.2 SATA 6Gb/s - HP Value |
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Optical Drive | - | DVD-Writer |
AUDIO & VIDEO | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Graphics Processor (GPU) | Intel Iris Xe Graphics | AMD Radeon R4 |
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Video System Features | Functions as Intel UHD graphics (for single-channel memory) | - |
Camera | Yes - HD | - |
Camera Features | Privacy shutter, IR camera | - |
Video Resolutions | 720p | - |
Sound | Stereo speakers, dual array microphone | Stereo speakers, microphone |
Codec | Realtek ALC3247-CG | - |
COMMUNICATIONS | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Wireless | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac, Bluetooth 4.2 |
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Wireless Controller | Intel Wi-Fi 6E AX 211 - PCI Express Mini Card (M.2) | Intel Dual Band Wireless-AC 3168 - PCI Express Mini Card (M.2) |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | Realtek RTL8111HSH | - |
Bluetooth Class | Class 2 | - |
Compliant Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.3ab, IEEE 802.3x, IEEE 802.11d, IEEE 802.1x, IEEE 802.11i, IEEE 802.11h, IEEE 802.11e, IEEE 802.11k, IEEE 802.11r, IEEE 802.11v, Wi-Fi CERTIFIED 6E | IEEE 802.3ab, IEEE 802.1x, IEEE 802.11i, Wi-Fi CERTIFIED |
Remote Management Protocol | SNMP 2 | - |
Features | Miracast, Wake-on-LAN (WOL), dual stream (2x2), CNVi | Single stream (1x1) |
BATTERY | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Technology | 3-cell lithium polymer | 3-cell Lithium Ion |
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Battery Capacity (Size) | 51.3 Wh | 31 Wh |
Battery Life | Up to 13.5 hours | - |
AC ADAPTER | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Input | AC 115/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 45 Watt | 45 Watt |
INPUT | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Type | Keyboard, ClickPad | Keyboard, touchpad |
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Keyboard Name | HP Premium | - |
Numeric Keypad | Yes | Yes |
Features | Multi-touch clickpad, gesture function, spill-resistant | Multi-touch touchpad, touchpad with gesture support |
CONNECTIONS & EXPANSIONS | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Interfaces | USB-C 3.2 Gen 2 (supports DisplayPort 2.1 Alt Mode) (Power Delivery) USB 3.2 Gen 1 (powered) USB 3.2 Gen 1 (charging) HDMI LAN Headphone/microphone combo jack USB 3.2 Gen 1 |
2 x USB 3.1 Gen 1 USB 2.0 VGA HDMI Headphone/microphone combo jack LAN |
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Memory Card Reader | - | Yes (SD Card, SDHC Card, SDXC Card) |
SOFTWARE | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Operating System (OS) | Windows 11 Home - English | Windows 10 Home 64-bit Edition - English |
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Software Included | HP Support Assistant, HP Power Manager, HP Hotkey Support, HP Secure Erase, HP Client Catalogue (free download), HP PC Hardware Diagnostics, HP Notifications, HP Connection Optimizer, HP Privacy Settings, HP QuickDrop, HP Client Management Script Library (free download), HP BIOSphere Gen6, HP Wake on WLAN, myHP, HP Image Assistant Gen5 (free download), HP Smart Support (free download), HP Smart Support, HP Manageability Integration Kit (free download) | HP Support Assistant, Bing Toolbar, HP ePrint, HP PC Hardware Diagnostics UEFI, Recovery Manager Installer, Microsoft Push Button Recovery, CyberLink Power Media Player, HP Touchpoint Manager, HP System Event Utility, HP JumpStart |
MISCELLANEOUS | HP ProBook 440 G9 Notebook | HP 255 G6 Notebook |
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Included Accessories | HP 45 Watt Smart USB-C AC Adapter | Power adapter |
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Integrated Options | HP Tamper Lock | - |
Security | Trusted Platform Module (TPM 2.0) Security Chip | Firmware Trusted Platform Module (TPM 2.0) Security Chip |
Security Slot Type | Kensington nano security slot | Kensington security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately), chassis intrusion sensor | Security lock slot (cable lock sold separately) |
Features | HP Automatic Drive Lock, HP DriveLock, HP Fast Charge, BIOS Update via Network, MIL-STD-810H tested | - |
Compliant Standards | CSA, UL, VCCI, BSMI, SABS, CCC, FIPS 140-2 Level 2, FCC, RoHS, WEEE, A-Tick, ICES, Common Criteria EAL4+, KC, CECP, EAC, CIT, SEPA, low halogen, ICCP, Japan PC Green Label, Taiwan Green Mark, Korea Eco-Label | - |
ENERGY STAR Certified | Yes | Yes |
Max Operating Temperature | 35 °C | - |
Min Operating Temperature | 0 °C | - |
Humidity Range Operating | 10 - 90% (non-condensing) | - |
Manufacturer Warranty | Limited warranty - parts and labour - 1 year | Limited warranty - 1 year Limited warranty - battery - 1 year |